Background info:I assembled four Ardweenies and tested them all. The fourth one does not work whereas the other three worked as expected with the Blink.pde sketch available with the Arduino 0021 download.

The LED on Pin 13 blinks about once every three seconds. When I press the reset button, the LED blinks once upon release and then once every three seconds.

When I upload the sketch to the board, the LED on Pin 13 blinks three times and the TX LED on the Sparkfun FTDI Basic Breakout board blinks three times but the RX LED stays off. While this is going on, the IDE continues to say uploading to the board and then I get the error message given above.

I tested the continuity between the ISP headers as connected to the Sparkfun board, GND to both GND pins, 5 V to + and A+, TX Sparkfun pin to Adrweeny D0, and RX Sparkfun pin to Ardweeny D1. I do not know what the CTS and OTR Sparkfun pins do. The Sparkfun header ISP pins GND, 5 V, TX, and RX have continuity to their respective pins. These are also the pins as on the working Ardweenies.

When I tested the board for voltages with the Sparkfun board in place+ to GND was 5 V,A+ to GND was 5 V,but AR to GND was 0.6 V.